5.03 Quiz: The Quadratic Formula

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Donnie is solving the equation 2x² = 27 + 3x with the quadratic formula. What values should he use for a, b, and c?

A = 2. B = -3. C = -27.

Which solution shows the unsimplified solution for 3x² - 6x + 2 = 0?

x = 6 ± √12 / 6

What are the solutions to the equation? Use the quadratic formula to solve the equation. Round irrational solutions to the nearest tenth. x² + 8x + 9 = 0?

{-6.6, -1.4}

What are the solutions to the equation? Use the quadratic formula to solve the equation. 2y² - 3y = 2?

{-½, 2}

What are the solutions to the equation? Use the quadratic formula to solve the equation. 2y² - 6y - 8 = 0?

{4, -1}.


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